Printer&#39;s blanket.



A. F. DECKER.

PRINTERS BLANKET.

APPLICATION rum) IEB.18, 1911.

1,004,385. Patented Sept. 26, 1911.

Iran-ST nron.

AMMIEL r, :oncxnn, on NEW Yonx, N. Y.', AssIeNonro r-Inaunnnown & 00., on new Yonx. n. 2., A conronsrron onnrrw ronzx.

' Y nnm'rnn's sesame.

' Specification of Letters Patent.

Patented Sept. 26, 1911-.

Application flled lebruary 18, 1911. Serial No. 809,470.

To all whom'it ma/y Be it known that I, AMMIEL F. Dnomin,

a citizen of the United States, and a resident of the borough of Brooklyn, county of Kings,'city and State of New York, have invented certain new and useful Improvements-in Printers Blankets, ofwhich the following is aspecification accompanied by drawings. a

This' invention relate'sto printers blankets, and the objects of the invention are to improve upon the construction of such blankets, render them proof against the disintegrating action'of printers ink, and increase the durability of the blankets, thus prolonging their life.

Further objects of the invention will here- 'Zinafter appear and to all of these ends the invention consists of a prmters blanket emmeansthe life of t e blanket is ma e sub-' comprises rosin, linseed oil an I a suitable gum, mixed 1n any'suita'ble proportions, as"

or ms bodying the features of constructiom'and combinations of elements substantially as hereinafter fully described and claimed in .thisspecification and shown the accompanying drawing which is a 1perspective view of a portion of a printers b the covering at one corner removed.'

Referrin to the drawing, A re resents the body 0% thematerial, forming t e'basis fo'rthe printers blanket. This body material is m the form of a suitable composition preferably embodying ground cork as shown in the drawing, and a suitable binder, the whole bein treated in any suitable mannor to render it roof. against-the disintegrating action, 0 'rinters B this stantially double that of a'rubber blanket.

Both sides of the body layer of compothereto, By facin both sidesof the body composition the H e of the material is prolonged, and the use of the blanket on a printing press is made possible. 7 I 1 The preferred binder for the 'ound cork tanks the followin :'about 1 part of gum, about 4 parts 0 rosin, about 24 parts of .011, to; about 28 parts of ground cork. The surface'fabrics are made" to adhere to the composition preferably both at-the' same time under the application of "heat and pressure and the material is then.

sea'soned". by being placediii' ifheate'd ai least partially dr anket with 'ket" unfit for use.

mosphere for a suflicient length of time to at out the oil, The ma terial is then rea y for use as a printers blanket. I

The printers blanket is not affected by printers ink, becausethe material itself is insoluble in printers ink. As the cloth sur-. faces have become saturated with oil under the pressure applied, the blanket is both 'with fabric on one side,v

not heretoforebeen deeme possible to face. i

a composition of the character ofthat herein disclosed on both sides and maint in the adherence of the fabric to the composition, but I have discovered that an improved and' efficient blanket can be constructed as set forth, with fabric adherent to bothsides.

Fabrics have been coated with com'posithe whole structure impervious to printers ink and are apt tocrack ofi, particularly when the fabric is reeled on the c linder of the printing press. When such a lanket so treated is cut tov the required size, a raw edge-is left, which enables the ink to pone-'- trate the interior construction and swell or blister the blanket, thus rendering the blan- -g uished from a coating material, the con-' str'uction is such that it is 'not necessary to 7 apply a coating to the fabric surfaces, and

the entire materialis oil and ink proof. The edges of the material do not pernnt the penetration of ink,- and thus bl1ster1ng-1s avoided and the life of the blanket isprolonged. Ap licants material is flexiblewd can be r ed on the cylinder .withf'eut 1 Letters Patent, the 4 following son'e'd" or "with an agent containingoil, with fabric tire massof the structure including the fabric 'facings and the edges is impervious to the disintegrating action of. printers ink cracking the composition. The faces of applicants material are practically indestructible under the work to which they are subjected.

1 Without limiting myself to the details of; construction, I 012mm and desire to obtain by on both sides and permeated withthe agent in a partially dried state, whereby the enand oi r 2. Asa new article of manufacture, a printers blanket comprising a structure ofgartia y dried state, and consistscribing witnesses.

composition and fabric in a partially dried "state, having a body layer of ground cork mixed with linseed oil, rosin and gum, and separate fabric facings closely adherent to the body layer onboth sides, and permeated with the linseed 'oil, rosin and gum, which ingredients are contained in the structure of I the fabric facings in a partiallydried state,

whereby the facings are rendered practi- ,cally indestructible and the combined mass of the body layer and facings is rendered impervious to printers ink, which is also prevented from entering at the edges 'between the body layer and the facin'gs.

-In testimony-whereof I have signed this 'pecification in the. presence I of two sub- AMMI-EL F., DECKER. Witnesses:

W. J.. Tnaeuu, Jr., RUTLEDGE Tommie 

